Body temperature can be affected by various circumstances. It changes as you get older, when you exercise, while you sleep and after consuming certain foods.

Continue reading for more interesting facts about body temperature.

your body temperature changes. According to a study, older people are unable to regulate their body temperatures to the same degree as younger people because their responses to changes in body temperature are altered. Therefore, normal body temperature can decline with age.

While you sleep, your body’s natural core temperature decreases, but towards the end of your sleep cycle it starts to rise. Keeping your room temperature low will help your body do its job during your sleep cycle. This has also been shown to help people fall asleep faster.

Similar to Pinocchio, your nose can disclose when you are lying. But instead of growing longer, it heats up. Research found a jump in the temperature around the nose during lying. According to Live Science, “these effects could have something to do with the insula, a region of the brain involved in consciousness as well as the detection and regulation of body temperature.”

Your blood vessels become constricted when you smoke. You may feel your hands and feet become cold. However, your body temperature actually goes up; when you inhale hot smoke you are raising the temperature in your lungs, ultimately resulting in an increase in your core body temperature.

Your body temperature is usually lowest in the morning and highest in the evening. However, it may also change depending on your environment – hot or cold and how active you are.

Throughout their menstrual cycle, women experience higher temperatures during sleep. Their temperature also increases after ovulation which lessens the normal decline in body temperature that happens with sleep.